Completed
Last Updated: 28 Jul 2016 05:52 by ADMIN
ADMIN
Dimitar
Created on: 18 May 2016 08:23
Category: VirtualGrid
Type: Bug Report
1
FIX. RadVirtualGrid - scrolling with the Up/Down keys is not smooth when a lot of cells are visible
To reproduce:
public RadForm1()
{
    InitializeComponent();
    radVirtualGrid1.CellValueNeeded += RadVirtualGrid1_CellValueNeeded;
    radVirtualGrid1.ColumnCount = 20;
    radVirtualGrid1.RowCount = 1000;
    radVirtualGrid1.AutoSizeColumnsMode = Telerik.WinControls.UI.VirtualGridAutoSizeColumnsMode.Fill;
}

private void RadVirtualGrid1_CellValueNeeded(object sender, Telerik.WinControls.UI.VirtualGridCellValueNeededEventArgs e)
{
    e.Value = string.Format("Col {0} Row{1}", e.ColumnIndex, e.RowIndex);
}

- Press and hold the down key, you will notice that the selection freezes after some time and is updated after the key is released.  
(Total attached files size should be smaller than 20mb. Allowed extensions: .zip, .rar, .jpg, .png, .gif)
4 comments
ADMIN
Stefan
Posted on: 28 Jul 2016 05:52
Hi Shaolin, lets continue our conversation in the support thread you have opened on the matter.
Shaolin
Posted on: 26 Jul 2016 18:59
Hi,
I think this has been fixed and will be release for Q3 2016. Is it possible to get the fixed version of library now? I am still in the process of evaluating grid controls from various companies.
Your help is greatly appreciated!

Regards,
Shaolin
ADMIN
Stefan
Posted on: 06 Jun 2016 09:45
Thank you for your input Shaolin.
Shaolin
Posted on: 18 May 2016 12:54
Total virtual mode caused scrolling slow. The data and styles on cell level need to be cached for some time and reused. They may be saved as week references or some other logic to determine when they can be disposed.
Regards,
Shaolin